attml........yes I do know what caused it. I was on vacation and sometime during the week the gfci outlet tripped and shut power off to the tank. The bad thing about it, I told the lady who was watching my pets not to worry about the tank everything would be fine. I lost everything except 4 blue legs. Corals I had were........7 sps frags, 1 acro colony (which I grew from a frag) bubble coral, hammer coral, several mushrooms colonys, black and orange sun corals and some other softies. Two maxima clams. Tank has been set up for almost 2 years.
Now some other questions.......I am going to set the tank up again but I would guess the live sand and rock should be tossed or can I save the rock and just scrub it with fresh water? Any advise from anyone would be greatly appeciated.